Circulation system for engines



July 8, 1930. w. E. ADAMS CIRCULATION SYSTEM FOR ENGINES Filed March2'7, 1928 QW-w Q INVENTOR, i/lrfl 1c! A TTORNEYS.

Patented July 8, 193% WALTER E. ADLIViIS, 015 LOS ANGELES, CALIFORNIACIRCULATION SYSTETEFOR ENGINES Application filed. March 27, 1928.SeriallNo. 265,050.

This invention relates to an improved circulation system and means forengines, and particularly internal combustion engines. a The inventionhas for an object the provision of a cooling system and means which iseffective to the end that those parts of a motor which'work under thegreatest heat are properly cooled. Internal combustion en ginesaresometimes subject to what is known as cracking ofthe cylinder block dueto overheating of the engine. My system has for an object a coolingmethod as well as a means which will in a large measure overcome thistrouble to the end that cracked cylinder blocks rarely occur. My systemand means may be utilized as an attachment for existing engines or itmay be formed integral with the engine blockat the time the engine blockis cast.

I have found that in the average truck, the

truck drivers often work their engines to the extreme limits in thehauling of heavy loads.

It often happens that truck engines will run in low gear for hours at atime and unless the driver is careful, the cooling medium, if it happensto be water, will become extremely hot and no longer effect a propercooling of the engine with the result that a crack will occur in theblock and the engine is rendered practically useless thereafter. Thecooling medium, which is usually water, has an entrance within theengine bloclr usually on the exhaust side. This water is generallyforced into the engine block from a radiator through the medium of apump. This pump is adapted to force the water into the engine blockunder pressure and the inventor has found that this water pressure isusually sufficientto force the water to the opposite side of the engine,that is, to the intake valve side which 40 is generally cool, with theresult that the hottest side of the engine is in a measure neglected orat best the water is warm or hot by the time it reaches the exhaust sideof the engine, or the water may back up on the exhaust side of theengine and prevent the cooler water from actual contact with thecylinder walls in the exhaust valve housings. Quite naturally theexhaust valve side would then overheat and a'crack would probably resultif the engine had a long continued use under tion and relativearrangement of parts, memdescribedgenerally, and more particularlypointedout in the claims.

'ceives water or other liquid from the cylinder these operatingconditions. Another factor would be that steamwould form above thesurface ofthe water and tend to prevent actual circulation around thehottest portion of the engine. I

My invention has for another object the provision of means which willdirect the water to where it is most needed to the end that the hottestside of the engine will have a proper circulation of cool Water.

Other objects will appear as the specification proceeds and with suchobjects inview, the invention consists in the novel and usefulprovision, format1on, construction, associabers and features, all asshown in a certain embodiment in-the accompanying drawing,

In the drawing: 7 V Figure 1 is a top plan view of an engine blockwitlrthe-head removed and showing the invention incorporated within theblock, Figure 2 is a transverse sectional viewof the engine on the line2-2 of Figure 1, and Figure 3 is a perspective view of a means which maybe used in practicing the invention.

Referring now with particularity to the drawing, theimproved circulationsystem and means is designated as an entirety by A, and the same mayinclude a radiator a which rehead 6 of an engine 0 and which water isrun through the radiator for the purpose ofcooling the same anddelivered at the lower extremity of the radiator to a circulation pump(Z which pump in turn delivers the water within the engine 0 throughmeans 6. This means e is shown inFigure 3, and the same includes acurved tube 1 flanged at one end 2, and the opposite end is capped orclosed, as shown at 3. Said tube-is provided with one or more openings4t adjacentthe capped or closed end 8. In the present instance threeopenings are provided and arranged substantially apart. Ordinarily thepipe 5 leading from the pump d communicates directly with the interiorof the engine block. It will be seen from the figures that the device eis inserted velocityloy the pump withingthe and the same movesdirectlyacrossthe engine within the engineblock so thatthe perforated endthereof "lies adjacent the intake valve housings shown'at 6. Thepipe 5isthen con nected to the flange 2 in thBHSHfll manner, that is,bypassing bolts through bolt openings7in the flange 2 andinthefiangeon theendofthe pipe 5 and thensecuring the'same by nuts, I The motorillustrated in Figure l i's otth'e dual valve typehavingjtwo intakevalves for each cylinder as well as two eX- haust valves foreachcylinder. -Ordinarily water. from the radiator, a is forced at highengine block block, as indicated by the arrow 8 to the opposit'e side ofthe engine block andflows be tween the intake valve housingsand thecylindersland thence around contact with the exhaust valve housingsTand thecylinders This,,of course, causes the coolestwa'ter-to contactlwith thecoolest part of the motor.

Withmy system and by utilizing the means 6,

the water would be divided and one-third of said stream of waterwould'flow'in the direc- V parture from use of the as indicatedby the arrows11. thattheopenings 4 a're close to the tops'of the I valve housingsorthat portion which normaltion of the arrow 8 and the other two-thirdswould flow in the direction ofthe' arrows 9 and 10 thus coolwater wouldbelcaused to contact'fas between the exhaustvalve housclosed end andformed with a plurality'of orifice openings, and means for forcing waterunder pressure through said tube and out said orifice openings, saidtube being positioned adjacent the tops of the valve housings to therebydirect the cool water against the hot test part of the engine. 7 j i jIn testimony whereof, I have signed my name to this specification at LosAngeles, California, this 15th day of March, 1928.

a WALTER E. ADAMS.

ings and the cylinderwalls. The result will a be that the cool waterwillcirculate generally,

Itwill be noted lyreceives the valvehead. This is the portlon ofgreatest heat and vthe'coolwater is brought directly in contact with'thisportion.

It is obvious that the'means-e'might be cast I V in theengine blockorthat the point of entrance of the Water within the engine block might beraised and suitable means, for directing the path of flow of the waterindeprecise features of v the device 6, and that these changes are con- Vof saidengine,

I I end and formed i templated without; departing from thetrue .7 v Hspirit of the invention. a 1

' Having thus disclosed my invention what I claimand desire to secureby'LettersPatent 1. I The combination Withja water cooled engine,'ofatube received in the water jacket said-tube being capped at one withan orifice openi11g,and means for directing Waterunder pressure throughsaidtube for said orifice opening.

outward flowthrough i 2.1 Thecombination with the waterja-cket i of aninternal combustionengin of a: tube received within said Waterjacketysai'dtube being provided with orifice ope1 1ings, ?and means afor directing Water underfpressure into said tube, said orifice openingssplitting the path of flow of said water into a plurality of directions.a vi a I Q Q 3. The combinationwith an internal com bustion enginehaving the usual intake valves llH lli")

